/*

     File: DrawerController.m

 Abstract: Controller for the application.

  Version: 1.2

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 */

#import "DrawerController.h"

@implementation DrawerController

/****************** Left drawer ******************/

/* Our left drawer is a simple drawer, created in IB, with nothing more than a minimum and maximum size. */

- (void)setupLeftDrawer {

    [leftDrawer setMinContentSize:NSMakeSize(100, 100)];

    [leftDrawer setMaxContentSize:NSMakeSize(400, 400)];

}

/* We do not use [NSDrawer open:] to open the drawer, because that method will

autoselect an edge, and we want this drawer to open only on the left edge. */

- (void)openLeftDrawer:(id)sender {[leftDrawer openOnEdge:NSMinXEdge];}

- (void)closeLeftDrawer:(id)sender {[leftDrawer close];}

- (void)toggleLeftDrawer:(id)sender {

    NSDrawerState state = [leftDrawer state];

    if (NSDrawerOpeningState == state || NSDrawerOpenState == state) {

        [leftDrawer close];

    } else {

        [leftDrawer openOnEdge:NSMinXEdge];

    }

}

/****************** Bottom drawer ******************/

/* Our bottom drawer is created programmatically rather than in IB, and has a 

fixed size both vertically and horizontally.  The fixed vertical size is achieved

by setting min and max content sizes equal to the content size.  The fixed horizontal

size is achieved by setting leading and trailing offsets when the parent window resizes. */ 

- (void)setupBottomDrawer {

    NSSize contentSize = NSMakeSize(100, 100);

    bottomDrawer = [[NSDrawer alloc] initWithContentSize:contentSize preferredEdge:NSMinYEdge];

    [bottomDrawer setParentWindow:myParentWindow];

    [bottomDrawer setMinContentSize:contentSize];

    [bottomDrawer setMaxContentSize:contentSize];

}

- (void)openBottomDrawer:(id)sender {[bottomDrawer openOnEdge:NSMinYEdge];}

- (void)closeBottomDrawer:(id)sender {[bottomDrawer close];}

- (void)toggleBottomDrawer:(id)sender {

    NSDrawerState state = [bottomDrawer state];

    if (NSDrawerOpeningState == state || NSDrawerOpenState == state) {

        [bottomDrawer close];

    } else {

        [bottomDrawer openOnEdge:NSMinYEdge];

    }

}

- (void)setBottomDrawerOffsets {

    NSSize frameSize = [myParentWindow frame].size;

    [bottomDrawer setLeadingOffset:50];

    // we want a bottomDrawer width of approximately 220 unscaled.  Figure out an offset to accomplish that size.

    CGFloat bottomDrawerWidth = 220 * [myParentWindow userSpaceScaleFactor];

    [bottomDrawer setTrailingOffset:frameSize.width - bottomDrawerWidth - 50];

}

/****************** Upper right drawer ******************/

/* Our two right drawers divide the right edge of the parent window between them. 

In addition, they resize together horizontally, in such a way as to maintain a

constant total width. */

- (void)setupUpperRightDrawer {

    NSSize contentSize = NSMakeSize(150, 150);

    upperRightDrawer = [[NSDrawer alloc] initWithContentSize:contentSize preferredEdge:NSMaxXEdge];

    [upperRightDrawer setParentWindow:myParentWindow];

    [upperRightDrawer setDelegate:self];

    [upperRightDrawer setMinContentSize:NSMakeSize(50, 50)];

}

- (void)openUpperRightDrawer:(id)sender {[upperRightDrawer openOnEdge:NSMaxXEdge];}

- (void)closeUpperRightDrawer:(id)sender {[upperRightDrawer close];}

- (void)toggleUpperRightDrawer:(id)sender {

    NSDrawerState state = [upperRightDrawer state];

    if (NSDrawerOpeningState == state || NSDrawerOpenState == state) {

        [upperRightDrawer close];

    } else {

        [upperRightDrawer openOnEdge:NSMaxXEdge];

    }

}

/****************** Lower right drawer ******************/

- (void)setupLowerRightDrawer {

    NSSize contentSize = NSMakeSize(150, 150);

    lowerRightDrawer = [[NSDrawer alloc] initWithContentSize:contentSize preferredEdge:NSMaxXEdge];

    [lowerRightDrawer setParentWindow:myParentWindow];

    [lowerRightDrawer setDelegate:self];

    [lowerRightDrawer setMinContentSize:NSMakeSize(50, 50)];

}

- (void)openLowerRightDrawer:(id)sender {[lowerRightDrawer openOnEdge:NSMaxXEdge];}

- (void)closeLowerRightDrawer:(id)sender {[lowerRightDrawer close];}

- (void)toggleLowerRightDrawer:(id)sender {

    NSDrawerState state = [lowerRightDrawer state];

    if (NSDrawerOpeningState == state || NSDrawerOpenState == state) {

        [lowerRightDrawer close];

    } else {

        [lowerRightDrawer openOnEdge:NSMaxXEdge];

    }

}

- (void)setRightDrawerOffsets {

    NSSize frameSize = [myParentWindow frame].size;

    NSUInteger halfHeight = frameSize.height / 2, remainder = frameSize.height - 2 * halfHeight;

    [upperRightDrawer setLeadingOffset:50];

    [upperRightDrawer setTrailingOffset:halfHeight];

    [lowerRightDrawer setLeadingOffset:halfHeight];

    [lowerRightDrawer setTrailingOffset:50 + remainder];

}

- (void)awakeFromNib {

    [self setupLeftDrawer];

    [self setupBottomDrawer];

    [self setupUpperRightDrawer];

    [self setupLowerRightDrawer];

    [self setBottomDrawerOffsets];

    [self setRightDrawerOffsets];

}

/* For best results, drawers should be resized after the window has resized, so we

do the resizing in windowDidResize:. */

- (void)windowDidResize:(NSNotification *)notification {

    [self setBottomDrawerOffsets];

    [self setRightDrawerOffsets];

}

/* The horizontal sizing of the right drawers is controlled by this drawer delegate method. */

- (NSSize)drawerWillResizeContents:(NSDrawer *)sender toSize:(NSSize)contentSize {

    contentSize.width = 10 * ceil(contentSize.width / 10);

    if (contentSize.width < 50) contentSize.width = 50;

    if (contentSize.width > 250) contentSize.width = 250;

    if (sender == upperRightDrawer) {

        [lowerRightDrawer setContentSize:NSMakeSize(300 - contentSize.width, [lowerRightDrawer contentSize].height)];

    } else if (sender == lowerRightDrawer) {

        [upperRightDrawer setContentSize:NSMakeSize(300 - contentSize.width, [upperRightDrawer contentSize].height)];

    }

    return contentSize;

}

@end